Hello Product Hunt! I’m Chris, a product manager at Slack. We’re very excited to add Screen Sharing to Calls in Slack so that you can share your screen with your teammates to collaborate and get work done.
Screen sharing (like voice and video calls before it) is based largely on WebRTC, along with a few modifications we’ve made to make your experience better. You should experience smooth, high quality, high frame rate screen shares. As always, we paid attention to the experience and aim to offer a simple and beautiful UI.
Screen sharing is available to all paid teams and will be rolling out slowly over the next few days.
We’ll be around answering any questions you may have. Let us know what you think! Any and all feedback is deeply appreciated. You can also learn more on our blog: https://slackhq.com/screen-shari...

@dubstrike@one16th
That's one of the important features which will make communication more intact. Although just to let you, we www.collabe.io are about to offer same features to all the users free of cost. We believe, customer don't need to pay till the time it's freely available in the market.

This is another example of Slack eating other business tools and it vertically integrates team collaboration tools. They're uniquely positioned to compete with long-standing, big players because they have access to a unique graph (the people you work with today) and own the real-estate team's use throughout the day (reducing friction).
Next up: Google Docs, Dropbox, Trello. What else?

@rrhoover We’ve invested a lot into the Slack platform and our partners in the space. Everybody should have access to the tools, apps, and workflows they need to get work done, and we think it’s a much better experience if it’s streamlined in one interface!
This is a great time to remind teams that they can switch to other calling apps in Slack and we’re working on integrating them even better. We’re not looking to “eat” other business tools, but bring them into the fold in a way that makes life easier for people.

I don't know if that's entirely true. Lots of orgs already use Google Apps (G-Suite or whatever they're calling it now). The instant Google releases Hangouts Chat broadly, I can see a lot of orgs having a really, really hard time justifying Slack's additional cost when they can just use Hangouts.

@rrhoover Plus as 3rd parties add integrations, slack can probably track usage and use that as evidence for new feature sets they build out themselves. Amazon did that with plenty of their vendors, tracking sales and figuring out what product lines to get into themselves.
Being a 3rd party supplier on someone else's platform is always a risk.